[jira] Closed: (SLING-1056) Allow registration of adapter factories for synthetic resources

["Carsten Ziegeler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-1056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carsten Ziegeler closed SLING-1056.
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> Allow registration of adapter factories for synthetic resources
> ---------------------------------------------------------------
>
>                 Key: SLING-1056
>                 URL: https://issues.apache.org/jira/browse/SLING-1056
>             Project: Sling
>          Issue Type: Improvement
>          Components: Adapter, API
>    Affects Versions: API 2.0.4, Adapter 2.0.2
>            Reporter: Carsten Ziegeler
>            Assignee: Carsten Ziegeler
>             Fix For: API 2.0.6, Adapter 2.0.4
>
>
> The current implementation of the synthetic resource always returns null in the adaptTo(Class) method. However, there are use cases, where adapting a synthetic resource to an application class would make sense.
> Therefore it is required to be able to use the adapter manager in the synthetic resource.
> Unfortunately, the synthetic resource is a class in the api while the adapter manager is a service in the adapter bundle. We want to keep the api "inactive" and don't want to add a dependency to the adapter bundle. Splitting the api and moving some classes to the adapter bundle would work, but doesn't look nice either. We discussed several possible solutions, all of them have drawbacks
> It seems that out of these solutions, the one with the least changes is to add some static variabe somewhere in the API and the adapter bundle (or a different bundle) can set this variable once it is started. The synthetic resource checks this variable during adaptTo and if it is available delegates the adapting to the specificed object.
> This is a transparent change which should suite all needs.

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